Maguro nigiri is a classic sushi dish that features a slice of fresh tuna on top of a small mound of sushi rice. To make this dish, you will need the following ingredients: fresh maguro (tuna), sushi rice, soy sauce, wasabi, and pickled ginger. Start by cooking the sushi rice according to the package instructions. While the rice is cooking, slice the maguro into thin, rectangular pieces. Once the rice is cooked, let it cool slightly before assembling the nigiri. Wet your hands with water to prevent the rice from sticking, and shape small portions of rice into oblong shapes. Place a slice of maguro on top of each rice mound. To serve, arrange the maguro nigiri on a plate and serve with soy sauce, wasabi, and pickled ginger on the side. Dip each nigiri into the soy sauce and add a small amount of wasabi and pickled ginger for extra flavor. Enjoy the combination of the tender maguro and the slightly sweet sushi rice!